Holset 4043982 HE351W Turbocharger Assembly

The Holset HE351W turbocharger (Cummins part number 4043982) is a wastegate-controlled unit designed for the Cummins ISDE6 6.7-liter inline-six diesel engine. It features a compressor inducer diameter of approximately 54 mm and a turbine wheel exducer of 60 mm, optimized for 210 kW (285 HP) rated output. The center housing rotating assembly (CHRA) utilizes a fully floating bronze bearing system with oil cooling and water-cooled turbine housing option for thermal management. This unit serves as original equipment on Dongfeng Tianjin and Tianlong series medium-heavy duty trucks meeting China National Stage IV/V emission standards. The turbocharger integrates a pneumatic wastegate actuator calibrated for specific boost pressure curves required by the ISDE6 engine control module.